FR2722844B1 - HYDRAULIC SERVOMOTOR - Google Patents

HYDRAULIC SERVOMOTOR

Info

Publication number: FR2722844B1
Authority: FR; France
Prior art keywords: hydraulic servomotor; servomotor; hydraulic
Prior art date: 1994-07-20
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Fee Related

Application number

FR9508353A

Other languages

French (fr)

Other versions

FR2722844A1 (en

Inventor

Rufolf Pfaff

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Vodafone GmbH

Original Assignee

Mannesmann AG

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1994-07-20

Filing date

1995-07-11

Publication date

1999-05-14

1995-07-11 Application filed by Mannesmann AG filed Critical Mannesmann AG

1996-01-26 Publication of FR2722844A1 publication Critical patent/FR2722844A1/en

1999-05-14 Application granted granted Critical

1999-05-14 Publication of FR2722844B1 publication Critical patent/FR2722844B1/en

2015-07-11 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
- B64C27/58—Transmitting means, e.g. interrelated with initiating means or means acting on blades
- B64C27/64—Transmitting means, e.g. interrelated with initiating means or means acting on blades using fluid pressure, e.g. having fluid power amplification
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B18/00—Parallel arrangements of independent servomotor systems

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Aviation & Aerospace Engineering (AREA)
Servomotors (AREA)

FR9508353A 1994-07-20 1995-07-11 HYDRAULIC SERVOMOTOR Expired - Fee Related FR2722844B1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE4426706A DE4426706C1 (en)	1994-07-20	1994-07-20	Servo-hydraulic actuator

Publications (2)

Publication Number	Publication Date
FR2722844A1 FR2722844A1 (en)	1996-01-26
FR2722844B1 true FR2722844B1 (en)	1999-05-14

Family

ID=6524336

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR9508353A Expired - Fee Related FR2722844B1 (en)	1994-07-20	1995-07-11	HYDRAULIC SERVOMOTOR

Country Status (3)

Country	Link
US (1)	US5671651A (en)
DE (1)	DE4426706C1 (en)
FR (1)	FR2722844B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3128216B1 (en) *	2015-08-07	2019-03-13	Claverham Limited	Hydraulic valve
EP3255287B1 (en) *	2016-06-10	2024-03-20	Claverham Limited	Adjustment system for a hydraulic actuator
CN106151138B (en) *	2016-06-29	2017-12-08	安徽工程大学	The assignment of traffic hydraulic system that a kind of hydrostatic slideway can be adjusted with arbitrary proportion
EP3406950B1 (en) *	2017-05-25	2020-03-11	Claverham Limited	Hydraulic valve
CN109723688B (en) *	2017-10-27	2020-03-17	北京精密机电控制设备研究所	Hydraulic bypass device capable of being automatically adjusted
DE102017125749B4 (en)	2017-11-03	2025-01-16	Böllhoff Verbindungstechnik GmbH	electro-hydraulic linear actuator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2836196A (en) *	1955-08-25	1958-05-27	Bendix Aviat Corp	Hydraulically-actuated 4-way valve
US3333413A (en) *	1966-12-28	1967-08-01	Mercier Jean	Electro-hydraulic control system
US3486418A (en) *	1968-05-22	1969-12-30	Caterpillar Tractor Co	Control system for dual motors
DE3519211A1 (en) *	1985-05-29	1986-12-04	Mannesmann Rexroth GmbH, 8770 Lohr	Manually actuated seat valve
DE3703019C2 (en) *	1987-02-02	1997-02-13	Liebherr Aerospace Gmbh	Hydraulic adjusting device for a part of an aircraft to be moved
US4884401A (en) *	1988-08-30	1989-12-05	Sundstrand Corp.	Three position dual failure shut-off valve system

1994
- 1994-07-20 DE DE4426706A patent/DE4426706C1/en not_active Expired - Fee Related
1995
- 1995-07-11 FR FR9508353A patent/FR2722844B1/en not_active Expired - Fee Related
- 1995-07-20 US US08/504,702 patent/US5671651A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
DE4426706C1 (en)	1995-12-21
US5671651A (en)	1997-09-30
FR2722844A1 (en)	1996-01-26

Publication	Publication Date	Title
IT1289248B1 (en)	1998-09-29	HYDRAULIC POWER STEERING
DE69506219D1 (en)	1999-01-07	HYDRAULICALLY ACTUATED VALVE ARRANGEMENT
DE59603366D1 (en)	1999-11-18	HYDRAULIC UNIT
DE69517034D1 (en)	2000-06-21	HYDRAULIC DAMPER
DE59601845D1 (en)	1999-06-10	HYDRAULIC POWER STEERING
DE59402917D1 (en)	1997-07-03	HYDRAULIC UNIT
DE59507584D1 (en)	2000-02-10	HYDRAULIC UNIT
DE69624737D1 (en)	2002-12-19	Hydraulic power steering
DE69508666D1 (en)	1999-05-06	Hydraulic composition
DE69505203D1 (en)	1998-11-12	Hydraulic circuit
DE69529099D1 (en)	2003-01-16	Hydraulic actuator
DE69508316D1 (en)	1999-04-22	Hydraulic circuit
FI972125L (en)	1997-07-16	Hydraulic breaker
FR2722844B1 (en)	1999-05-14	HYDRAULIC SERVOMOTOR
FI942858A0 (en)	1994-06-15	Ram
ATA101895A (en)	2000-05-15	HYDRAULIC WHEEL
DE59404674D1 (en)	1998-01-08	Hydraulic amplifier
DE69624607D1 (en)	2002-12-12	Hydraulic power steering
BR9506592A (en)	1997-09-16	Hydraulic detonator
ATA102195A (en)	2000-05-15	HYDRAULIC WHEEL
DE59508099D1 (en)	2000-05-04	HYDRAULIC UNIT
BR9405054A (en)	1996-12-10	Hydraulic press
NO943090D0 (en)	1994-08-22	Hydraulic
KR950029815U (en)	1995-11-17	Two way hydraulic press
DE69410677D1 (en)	1998-07-09	Hydraulic ram

Legal Events

Date	Code	Title	Description
1997-05-23	TP	Transmission of property
2010-04-23	ST	Notification of lapse	Effective date: 20100331